We study the dynamics of atmospheric motions
from mesoscale to global scale, with a focus on the middle
atmosphere and stratosphere - troposphere exchange. We employ
chemical transport modeling, analysis of global meteorological fields,
analysis of satellite constituent distributions, and aircraft flight
data to better understand the general circulation and
dynamical transport mechanisms underlying global change.
We use the UWNMS
to study transport pathways,
the origin of the ozone croissant, shape of the ozone hole,
exchange near midlatitude cyclones and convective complexes,
regional air quality modeling, and mercury deposition.
Analysis of Satellite Constituent Data
Climatologies of stratospheric
aerosol, water vapor, and ozone are derived from satellite instruments, including
LIMS, SAM, SAGE, UARS, POAM, and Aura.
Dynamics and Global Data Analysis
include wave mean flow interaction in the equatorial and extratropical
middle atmosphere, inertial instability, the quasibiennial oscillation,
ozone transport, and Rossby wave breaking.
Aircraft Flight Campaigns
Flight forecasts and numerical
simulations for POLARIS, SOLVE, TRACE-P, and INTEX.